(feat): try to preload material icons

angular.json

@@ -17,7 +17,11 @@
             "tsConfig": "src/tsconfig.app.json",
             "polyfills": "src/polyfills.ts",
             "extractCss": true,
-            "assets": ["src/assets", "src/favicon.ico"],
+            "assets": [
+              "src/assets",
+              "src/favicon.ico",
+              "node_modules/material-design-icons"
+            ],
             "styles": [
               "node_modules/material-design-lite/dist/material.blue_grey-amber.min.css",
               "node_modules/plyr/dist/plyr.css",

src/index.html

@@ -24,6 +24,13 @@
       sizes="16x16"
       href="/en/assets/logos/bulb-16x16.png"
     />
+    <link
+      rel="preload"
+      href="https://cdn-assets.minds.com/front/fonts/material-icons.css"
+      as="style"
+      type="stylesheet"
+      crossorigin
+    />
     <link
       rel="preload"
       href="https://cdn-assets.minds.com/front/fonts/material-icons.woff2"